출애굽기 25:16 해설: Rashi, Rashbam, Sforno & Chizkuni

ונתת אל הארן — It must be explained as though it were written בארון: [AND THOU SHALT PUT] INTO THE ARK,

את העדות, the Tablets which represented the testimony and covenant between G’d and Israel. This is also the reason why Moses refers to them as לוחות הברית, “Tablets of the covenant,” in Deuteronomy 9,9.

ונתת אל הארון, the details were spelled out seeing this vessel had nothing to do with, and would not have been suitable for, sacrificial service.

העדות THE TESTIMONY — the Torah (the Tablets; cf. Rashi on Exodus 40:20) which is a testimony between Me and you that I have ordained the commandments written in it (Midrash Tanchuma, Pekudei 4).